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Airport Surveillance Radar (ASR-11) - Federal Aviation Administration
Airport surveillance radar - Wikipedia
Section 3. Radar Identification - Federal Aviation Administration
Terminal Radar Approach Control Facilities (TRACON)
Federal Aviation Administration (FAA) Radar Services - CFI …
Air Route Surveillance Radar - Wikipedia
air traffic control - What is a TRACON? - Aviation Stack Exchange
Airport surveillance and broadcast systems - Wikipedia
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